Check out example codes for "as c#". It will help you in understanding the concepts better.
Code Example 1
// taking a string variable string str1 = "GFG"; // taking an Object type variable // assigning var1 to it object obj1 = str1; // now try it to cast to a string string str2 = obj1 as string; //here, 'as' is used to cast the object obj1 to a string, //as the object already contained data of a string object
Learn ReactJs, React Native from akashmittal.com